Comparative Analysis of Fault Frequency Differences between Internal Combustion Forklift and Electric Forklift

In warehousing and logistics and industrial handling scenarios, internal combustion forklifts and electric forklifts are two types of mainstream equipment, and there are obvious differences in the failure frequency between the two. Understanding these differences can help enterprises plan equipment operation and maintenance rationally and reduce operating costs.

Power system fault frequency difference

Fault Characteristics of Internal Combustion Forklift Power System

Internal combustion forklifts take the fuel engine as the core and include multiple complex subsystems such as fuel supply, ignition, and exhaust. During the long-term use of this type of equipment, problems such as blocked fuel filter elements, wear of fuel injectors, and spark plug failures are more common, especially in environments with more dust and poor fuel quality. In addition, mechanical wear of pistons, crankshafts and other components inside the engine will also cause failures as the use time increases, and the overall power system failure frequency is relatively high.

Fault Characteristics of Electric Forklift Power System

Electric forklifts rely on batteries and motors for power, with a relatively simple structure and no complicated fuel supply and ignition system. The power system failures are mainly concentrated in battery attenuation, motor winding aging, controller failure, etc. Under normal use, the battery can run stably for a long time under reasonable maintenance, and the mechanical wear of the motor is much lower than that of the internal combustion engine, so the failure frequency of the power system is generally lower than that of the internal combustion forklift.

Transmission and braking system fault differences

Failure of internal combustion forklift transmission braking system

Internal combustion forklifts mostly use hydraulic or mechanical transmission structures, including clutches, gearboxes, transmission shafts, and other mechanical components. Under frequent start-stop and heavy-duty operation scenarios, friction losses between components are large, clutch slippage, gearbox shift failure, brake shoe wear is too fast, and other problems often occur. Transmission and braking systems have become one of the high-risk areas for internal combustion forklifts.

Failure of electric forklift transmission brake system

Electric forklifts mostly use electric drive axles, which simplify the transmission structure and reduce the friction loss of mechanical components. The braking system is mostly in the form of electronic braking or hydraulic braking, the wear rate of components is slower, and the failure probability of the electronic system is lower than that of the complex mechanical transmission structure. Therefore, the failure frequency of the electric forklift in the transmission and braking system is significantly lower than that of the internal combustion forklift.

The impact of daily maintenance on failure frequency

Whether it is an internal combustion forklift or an electric forklift, the standardization of daily maintenance will directly affect the frequency of failures. Internal combustion forklifts need to regularly change the oil, fuel filter, air filter, clean the exhaust system, and the maintenance process is cumbersome. If the maintenance is not timely, it is easy to cause various failures. The maintenance of electric forklifts focuses on battery maintenance and motor circuit inspection. The maintenance process is relatively simple, and operating according to the specifications can effectively reduce the probability of failure.

Overall, the overall failure frequency of electric forklifts is lower than that of internal combustion forklifts, which is closely related to their simple structure, few mechanical parts, and stable power system. However, the failure performance of the two will also vary under different working conditions. Enterprises should choose the appropriate forklift type based on factors such as their own operating environment and use intensity, and do daily maintenance to ensure the stable operation of equipment.